My brother and his wife have matching Browning A-bolts in 280 with BOSS. He loves it. She doesn't know any better. I can attest that it works quite well. I've seen him tune his to 1/2" groups with several different loads, and hers to 1/4" groups with her two preferred bullets: 150 Partitions and Sciroccos. Pretty slick deal, and the factory setting works well for a starting place or a leave-it-there. They are loud, as both have the ported BOSS. His one gripe: the bbl is about 21" long under the BOSS, and gives closer to 7-08 than 280 ballistics.
